Air purifier



FIG. 1 is a perspective view of an air purifier showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is a cross sectional view thereof taken along line 8—8 in FIG. 2.

The broken line showing of parts of the drawings is included for thepurpose of illustrating use and environment and forms no part of theclaimed design.

The ornamental design for an air purifier, as shown and described.